Phase separation detection in downhole fluid sampling
    1.
    发明授权
    Phase separation detection in downhole fluid sampling 有权
    井下液相采样中的相分离检测

    公开(公告)号:US08528396B2

    公开(公告)日:2013-09-10

    申请号:US12363835

    申请日:2009-02-02

    IPC分类号: E21B49/08

    CPC分类号: E21B49/082

    摘要: Example methods and apparatus to detect phase separation in downhole fluid sampling operations are disclosed. An example method to detect a phase separation condition of a fluid from a subterranean involves obtaining a sample of the fluid, measuring a first characteristic value of the sample, measuring a second characteristic value of the sample and comparing the first characteristic value to a first reference value associated with a single-phase condition of the fluid to generate a corresponding first comparison result. The example method then compares the second characteristic value to a second reference value associated with the single-phase condition of the fluid to generate a corresponding second comparison result and detects the phase separation condition of the fluid based on the first and second comparison results.

    摘要翻译: 公开了用于检测井下液体取样操作中的相分离的示例性方法和装置。 用于检测来自地下的流体的相分离条件的示例性方法包括获得流体样品,测量样品的第一特征值,测量样品的第二特征值,并将第一特征值与第一参考值进行比较 值与流体的单相条件相关联以产生相应的第一比较结果。 该示例方法然后将第二特征值与与流体的单相条件相关联的第二参考值进行比较,以产生相应的第二比较结果,并基于第一和第二比较结果检测流体的相分离条件。

    APPARATUS AND METHODS TO REMOVE IMPURITIES AT A SENSOR IN A DOWNHOLE TOOL
    3.
    发明申请
    APPARATUS AND METHODS TO REMOVE IMPURITIES AT A SENSOR IN A DOWNHOLE TOOL 有权
    在井下工具中移除传感器的污染物的装置和方法

    公开(公告)号:US20100126731A1

    公开(公告)日:2010-05-27

    申请号:US12695444

    申请日:2010-01-28

    IPC分类号: E21B34/06 E21B34/00

    CPC分类号: E21B49/08 E21B37/00

    摘要: Apparatus and methods to remove impurities at a sensor in a downhole tool are disclosed. During the testing and/or sampling of formation fluid in a borehole, the downhole tool creates a transient high rate of fluid flow of the formation fluid to remove impurities at the sensor.

    摘要翻译: 公开了在井下工具中的传感器处去除杂质的装置和方法。 在钻孔中地层流体的测试和/或采样期间,井下工具产生地层流体的瞬时高速流体流动以去除传感器处的杂质。

    Apparatus and Methods to Remove Impurities at a Sensor in a Downhole Tool
    6.
    发明申请
    Apparatus and Methods to Remove Impurities at a Sensor in a Downhole Tool 有权
    在井下工具中去除传感器杂质的装置和方法

    公开(公告)号:US20080093078A1

    公开(公告)日:2008-04-24

    申请号:US11757476

    申请日:2007-06-04

    IPC分类号: E21B21/00

    CPC分类号: E21B49/08 E21B37/00

    摘要: Apparatus and methods to remove impurities at a sensor in a downhole tool are disclosed. During the testing and/or sampling of formation fluid in a borehole, the downhole tool creates a transient high rate of fluid flow of the formation fluid to remove impurities at the sensor.

    摘要翻译: 公开了在井下工具中的传感器处去除杂质的装置和方法。 在钻孔中地层流体的测试和/或采样期间,井下工具产生地层流体的瞬时高速流体流动以去除传感器处的杂质。

    Apparatus and methods to remove impurities at a sensor in a downhole tool
    7.
    发明授权
    Apparatus and methods to remove impurities at a sensor in a downhole tool 有权
    在井下工具中去除传感器的杂质的装置和方法

    公开(公告)号:US08091635B2

    公开(公告)日:2012-01-10

    申请号:US12695444

    申请日:2010-01-28

    IPC分类号: E21B49/08

    CPC分类号: E21B49/08 E21B37/00

    摘要: Apparatus and methods to remove impurities at a sensor in a downhole tool are disclosed. During the testing and/or sampling of formation fluid in a borehole, the downhole tool creates a transient high rate of fluid flow of the formation fluid to remove impurities at the sensor.

    摘要翻译: 公开了在井下工具中的传感器处去除杂质的装置和方法。 在钻孔中地层流体的测试和/或采样期间,井下工具产生地层流体的瞬时高速流体流动以去除传感器处的杂质。

    Methods and apparatus to monitor contamination levels in a formation fluid
    8.
    发明授权
    Methods and apparatus to monitor contamination levels in a formation fluid 有权
    监测地层流体污染水平的方法和装置

    公开(公告)号:US08024125B2

    公开(公告)日:2011-09-20

    申请号:US12362602

    申请日:2009-01-30

    IPC分类号: G01V8/00 E21B49/08

    摘要: Apparatus and methods to monitor contamination levels in a formation fluid are disclosed. An example method involves obtaining first property data indicative of a first fluid property of a formation fluid and second property data indicative of a second fluid property of the formation fluid. A correlation between the first and second property data is generated and third data is fitted to the correlation. A fitting parameter is determined based on the third data indicative of an amount of change of the first property data relative to an amount of change of the second property data.

    摘要翻译: 公开了一种用于监测地层流体中污染水平的装置和方法。 示例性方法包括获得指示地层流体的第一流体特性的第一属性数据和指示地层流体的第二流体性质的第二特性数据。 生成第一和第二属性数据之间的相关性,并且将第三数据拟合到相关性。 基于指示第一属性数据相对于第二属性数据的变化量的变化量的第三数据来确定拟合参数。

    Methods and apparatus to monitor contamination levels in a formation fluid
    10.
    发明授权
    Methods and apparatus to monitor contamination levels in a formation fluid 有权
    监测地层流体污染水平的方法和装置

    公开(公告)号:US07711488B2

    公开(公告)日:2010-05-04

    申请号:US11764284

    申请日:2007-06-18

    IPC分类号: G01V8/00 G01N21/00 E21B49/08

    摘要: Apparatus and methods to monitor contamination levels in a formation fluid arc disclosed. An example method involves obtaining first property data indicative of a first fluid property of a formation fluid and second property data indicative of a second fluid property of the formation fluid. A correlation between the first and second property data is generated and third data is fitted to the correlation. A fitting parameter is determined based on the third data indicative of an amount of change of the first property data relative to an amount of change of the second property data.

    摘要翻译: 公开了用于监测地层流体中的污染水平的装置和方法。 示例性方法包括获得指示地层流体的第一流体特性的第一属性数据和指示地层流体的第二流体性质的第二特性数据。 生成第一和第二属性数据之间的相关性,并且将第三数据拟合到相关性。 基于指示第一属性数据相对于第二属性数据的变化量的变化量的第三数据来确定拟合参数。